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Straight Lines And Pair Of Straight Lines

TS EAMCET 2022 (Online) 19th July Evening Shift

MCQ+1 / -02022

For $a, b, c \in R$, if $6 a^2-3 b^2-c^2+7 a b-a c+4 b c=0$ and $|a|+|b| \neq 0$, then all the lines given by $a x+b y+c=0$ are


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